Management the safety of exploitation of the rotation mechanism in a self-propelled crane

• Autorzy: Krynke Marek , Vaško Alan

Identyfikatory

DOI

10.2478/czoto-2019-0079

• Konferencja: 7th International Conference System Safety: Human - Technical Facility - Environment, CzOTO 2018 (7 ; 12-14.12.2018 ; Zakopane, Poland)
• Języki publikacji: EN

Abstrakty

EN

The article analyzes of the load capacity of the rotation mechanism of the boom arm sub-assembly for a self-propelled crane. The uneven flexibility of systems supporting structures of the machine was taken into account in the identification of the load. The consideration are illustrated by the example slewing bearing from self-propelled crane. FEM method was used for calculations. The basic problems of construction of numerical model were discussed. Sample calculations of bearing carrying capacity has been done taking into account flexibility of bearings supporting structures, which also allowed to define the internal load distribution in the bearing. On example of the supporting structure of the mobile crane DST 5050 the internal load distribution in the crane bearing at different positions of the crane machine body were defined. During the rotation of the crane body priority angels were indicated. It has been shown that the deformations of the supporting frames are so large that they significantly change the distribution of forces transmitted by the individual bearing rollers.

Słowa kluczowe

EN

stability of cranes; slewing bearings; bearing capacity

PL

stabilność dźwigów; łożyska wieńcowe; nośność podłoża

• Wydawca: De Gruyter
• Czasopismo: System Safety : Human - Technical Facility - Environment
• Rocznik: 2019
• Tom: Vol. 1, nr 1
• Strony: 624--631
• Opis fizyczny: Bibliogr. 17 poz., rys.

Twórcy

autor

Krynke Marek

• Czestochowa University of Technology, Poland

autor

Vaško Alan

• University of Žilina, Slovakia

Bibliografia

• [1] Kania, L., 2012. Zagadnienia lokalne w numerycznym modelowaniu łożysk tocznych wieńcowych. Wydawnictwo Politechniki Częstochowskiej, Częstochowa.
• [2] Kania, L., Krynke, M., 2013. Computation of the general carrying capacity of slewing bearings. Engineering computations, 30, 1011-1028.
• [3] Kania, L., Krynke, M., Mazanek, E., 2012. A catalogue capacity of slewing bearings. Mechanism and machine theory, 58, 29-45.
• [4] Kania, L., Śpiewak, S., 2014. Influence of radial forces on change of friction torque in twin slewing bearing. Machine Dynamics Research, 38, 121-131.
• [5] Kania, L., Śpiewak, S., Pytlarz, R., 2016. The modification of the raceway profile in the double row slewing bearing. Journal of KONES, 23, 139-146.
• [6] Krynke, M., Mielczarek, K., 2016. Analysis of causes and effects errors in calculation of rolling slewing bearings capacity. Production Engineering Archives, 12, 38-41.
• [7] Liang, J., Chen, G.H., Wang, X.H. 2012, Discussion on fault evolution processes of slewing bearing for crane. Journal of Safety Science and Technology, 8, 201 124- 12.
• [8] Liu, R., Wang, H.,. Pang, B.T., Gao, X.H., Zong, H.Y., 2018. Load distribution calculation of a four-point-contact slewing bearing and its experimental verification, Experimental Techniques. 42, 243–252
• [9] Maczynski, A., Wojciech, S. 2003. Dynamics of a mobile crane and optimization of the slewing motion of its upper structure, Nonlinear Dynamics. 32, 259-290.
• [10] Mazur, M., 2018. Analysis of production incompatibilities and risk level in series production of assembly elements for the automotive industry. MATEC Web of Conferences, 183, 1-4.
• [11] Mielczarek, K., Knop, K., 2018. Assessment of production processes functioning in the case of air bag production. MATEC Web of Conferences 183, 1-6.
• [12] Smolnicki, T., 2013. Wielkogabarytowe toczne węzły obrotowe. Zagadnienia globalne i lokalne. Oficyna Wydawnicza Politechniki Wrocławskiej, Wrocław.
• [13] Smolnicki, T., Pękalski, G., Jakubik, J., Harnatkiewicz, P., 2017. Investigation into wear mechanisms of the bearing raceway used in bucket wheel excavators. Archives of Civil and Mechanical Engineering, 17, 1-8.
• [14] Śpiewak, S., 2016. Methodology for calculating the complete static carrying capacity of twin slewing bearing. Mechanism and Machine Theory, 101, 181-194.
• [15] Ulewicz, R., 2016. Influence of selected technological factors on fatigue strength. Czasopismo Techniczne, Mechanika Zeszyt 3-M, 10, 9-14.
• [16] Wang, H., He, P., Pang, B. Gao, X., 2017. A new computational model of large threerow roller slewing bearings using nonlinear springs. Journal of Mechanical Engineering Science, 231, 3831-3839.
• [17] Yu, Y.H., Lee, B.R., Cho, Y.J., 2017. New load distribution method for one-row slewing ball bearing considering retainer force. International Journal of Precision Engineering and Manufacturing, 18, 49-56.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).